package com.maxmlr.music.dao;


import com.maxmlr.music.model.User;

/**
 * 用户接口
 * @author maxiao
 *
 */
public interface UserMapper {
	User findUserById(Integer user_id);
	
	void saveUser(User user);

	User findByUserName(String username);
	
	void update(User user);
	
	void delete(Integer user_id);
}
